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Australians Robin Warren and Barry Marshall receive the 2005 Nobel Prize in Physiology or Medicine. Their research bucked conventional wisdom, showing that a bacterium, not simply excess stomach acid, causes peptic ulcers. Also, it suggested that bacterium may be a major cause of stomach cancer.

Nancy Grace, the fiery advocate for victims of violent crime, is leaving the HLN network after a dozen years. She says she will reemerge on TV and digitally too.

The young ace was the National League's Rookie of the Year in 2013. When he died, he had the second most strikeouts of any pitcher in the National League.

Sheku Kanneh-Mason, a rising star in the U.K. classical world, wants to serve as an inspiration for musicians even younger than he is.

Changes at the U.S. Postal Service - and the pandemic - have workers and customers noticing significant slowdowns in the Philadelphia area. Some worry about the upcoming election in this swing state.

The growing coronavirus death toll doesn't provoke the same type of emotional response that a plane crash might. It's a coping mechanism and how our neurons are wired, says psychologist Elke Weber.

With a closely divided Congress, which could include Republicans holding the Senate, President-elect Joe Biden's economic agenda may depend a lot on what his incoming administration can do on its own.

As ski season starts, resorts across the country are scrambling to find enough workers. Record low unemployment, expensive housing and fewer visas for foreign wokers make this year especially tough.

NASA’s InSight lander is settling in for the long assignment of exploring the geology of Mars. Will its findings one day rock our world?

The Pentagon released a report on the deaths of 4 U.S. and 5 Nigerian soldiers last fall in Tongo Tongo, Niger. David Greene talks to retired Army Brigadier Gen. Donald Bolduc about the investigation.